Earth Is Rock

Front

Geologist Noun

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[jee-ol-uh-jist]

Back

Geologist

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A scientist who studies the physical structure and substance of the Earth, its history, and the processes which act on it.

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Example: This image shows Earth's layers and surface features, illustrating what geologists study.

Front

Satellite images Noun

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[sat-uh-lite im-ij-es]

Back

Satellite images

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Pictures of Earth's surface taken from satellites orbiting the planet, often processed and combined to create detailed maps.

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Example: A satellite in space captures images of Earth's surface to create detailed maps.

Front

Mosaic Noun

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[moh-zey-ik]

Back

Mosaic

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A large image or map created by stitching together many smaller, individual images to form a complete picture.

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Example: Smaller rock fragments combine to form layers, creating a mosaic pattern in Earth's crust.

Front

GeoEye-1 Noun

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[jee-oh-eye-wun]

Back

GeoEye-1

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A high-resolution commercial Earth-imaging satellite known for providing very detailed images for various mapping services.

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Example: An Earth-imaging satellite like GeoEye-1 captures detailed images from space.

Front

Infrared radiation Noun

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[in-fruh-red rey-dee-ey-shuhn]

Back

Infrared radiation

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A type of light invisible to the human eye, detected by sensors to measure heat from objects on Earth's surface.

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Example: A thermographic image shows heat emitted from a hand, illustrating infrared radiation.

Front

Field samples Noun

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[feeld sam-puls]

Back

Field samples

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Physical specimens, such as rocks or soil, collected directly from their natural location for scientific study and analysis.

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Example: A soil core is collected from the ground to study its layers and composition.

Front

Watertight compartments Noun

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[wah-ter-tahyt kuhm-part-muhnts]

Back

Watertight compartments

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Sealed sections within a boat designed to keep supplies dry and help the vessel remain buoyant if it takes on water.

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Example: Watertight compartments in a boat keep supplies dry and maintain buoyancy if water enters.

Front

Sextant Noun

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[seks-tuhnt]

Back

Sextant

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A navigational instrument used to measure the angular distance between two visible objects, such as the horizon and a star.

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Example: The image shows a sextant with labeled parts, demonstrating how it measures angles for navigation.

Front

Chronometer Noun

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[kruh-nom-i-ter]

Back

Chronometer

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A highly accurate timekeeping device used for navigation and scientific observation, especially for determining longitude at sea.

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Example: A chronometer in a wooden case, used for precise timekeeping in navigation.

Front

Barometer Noun

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[buh-rom-i-ter]

Back

Barometer

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A scientific instrument used to measure atmospheric pressure, which helps in forecasting weather and determining altitude.

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Example: A barometer measures atmospheric pressure using a column of mercury, as shown in Torricelli's experiment.